Accidental Deletion – If you delete a user, whether you meant to or not, that deletion is replicated across the network. A backup can restore that user, either to on-premises Exchange or Office 365.
Retention policy gaps and confusion – Office 365 retention policies are hard to keep up with, let alone manage. A backup provides longer, more accessible retention all protected and stored in one place for easy recovery.
Internal security threats – Many businesses are experiencing threats from within, and they are happening more often that you think. Having a high grade recovery solution mitigates the risk of critical data being lost or destroyed.
External security threats – Malware and viruses have done serious damage to organizations globally in just the past year alone. A backup can easily store mailboxes to an instance before the attack.
Legal and compliance requirements – Ensure you can retrieve mailbox data during legal action and to meet any regulatory compliance needs.
Managing hybrid email deployments and migrations to Office 365 – Whether you are migrating to office 365 or have a blend of on-premises Exchange and Office 365 users, the exchange data should be managed and protected the same way, making the source location irrelevant.